* {
    padding: 0;
    margin: 0;
    font-family: 宋体;
}

body {
    /*background-color: pink;*/
    background-image: linear-gradient(to right, #aabfe2, #bcc4ea, #d0c8ef, #e3cdf3, #f5d2f4);
}

.container {
    max-width: 1000px;
    margin-left: auto;
    margin-right: auto;
    padding-left: 10px;
    padding-right: 10px;
}

.btn button {
    border-radius: 15px;
}

h2 {
    font-size: 26px;
    margin: 20px 0;
    text-align: center;

}

.box {
    height: auto;
    width: 700px;
    margin: auto;
    text-align: center;
}

.con {
    width: 800px;
    background-color: white;
    height: auto;
    margin: auto;
    padding: 38px 50px;
    box-shadow: 5px 5px 30px rgba(0, 0, 0, 0.5);
    border-radius: 15px;

}

.input {
    margin: auto;
    width: 950px;
    text-align: center;

}

.input img {
    vertical-align: middle;
}

.input input {
    width: 100px;
}

.score {
    border: none;
    border-radius: 5px;
    height: 25px;
}

.pi {
    background-color: darkgrey;
    height: auto;
    width: 700px;
    padding: 20px 30px;
}

#mian {
    width: 830px;
    height: 100%;
}

#leftBox {
    background: #ecf0f5;
    width: 35px;
    height: 100%;
    text-align: left;
    float: left;
}

#test {
    border: 1px solid #eaeaea;
    outline: none;
    width: 724px;
    height: 100%;
    resize: none;
    background: rgb(250, 250, 250);
    line-height: 24px;
    font-size: 14px;
    float: left;
    padding: 10px 8px;
    color: black;
    font-family: inherit;
    box-sizing: border-box;
}

#leftNum {
    height: 100%;
    width: 100%;
    resize: none;
    outline: none;
    overflow-y: hidden;
    overflow-x: hidden;
    border: 0;
    background: rgb(247, 247, 247);
    color: #999;
    line-height: 24px;
    font-size: 14px;
    padding: 10px 4px;
    text-align: right;
    font-weight: bold;
    box-sizing: border-box;
}

.btn {
    display: flex;
    justify-content: center;
    align-items: center;
}

.btn button {
    margin: 10px 20px;
    width: 90px;
    height: 30px;
    border-radius: 10px;
    border-style: none;
    background-color: lightskyblue;
    box-shadow: 5px 5px 30px rgba(0, 0, 0, 0.5);
}

.btn button:hover {
    cursor: pointer;
    background-color: orange;
}

.btn button:active {
    background-color: red;
}

.btn button:focus {
    background-color: red;
}
